Code breaks on receiving "user_change" event

[gaurav2493]

Issue Type

• Bug
• Enhancement / Feature request
• Question
• Documentation

Description

When user_change event is sent, the code breaks with the following exception

java.lang.UnsupportedOperationException: JsonObject

	at com.google.gson.JsonElement.getAsString(JsonElement.java:179)
	at com.slack.api.bolt.middleware.builtin.IgnoringSelfEvents.apply(IgnoringSelfEvents.java:79)

This happens because code expects user to contain string but it contained jsonObject

{
    "token": ".....",
    "team_id": ".....",
    "enterprise_id": "....",
    "api_app_id": "....",
    "event": {
        "type": "user_change",
        "user": {
            "id": "....",
            "name": "gaurav",
......
}

---

The issue is reproducible in:

• Module Version: 1.0.0
• JDK Version: 1.8.0_231

The steps to reproduce are:

1. subscribe to user_change event
2. Change any field to produce webhook

The expected result is:
Event to get handled

The actual result is:
exception is thrown

---

• I've read and understood the Contributing guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've searched for any related issues and avoided creating a duplicate issue.

[seratch]

@gaurav2493 Hello, thank you for flagging this (and fixing it 🙇). Your fix looks perfect! This one is so critical that I will release a new version (version 1.0.1) after merging your PR today.

[seratch]

@gaurav2493 Thanks again for your contribution here. I just published version 1.0.1 jars to the Sonatype OSS repositories. They'll be synchronized to Maven Central soon.